A study was conducted by the CDC to investigate the transmission of virus particles in two scenarios: when wearing a mask and when not wearing a mask. The researchers observed a sample of 40 individuals who were exposed to the virus in controlled conditions. Half of the individuals (Group A) wore masks during exposure, while the other half (Group B) did not wear masks. After the exposure period, the number of virus particles detected in each individual's respiratory samples was recorded. Use the data in the table below to determine if masks are effective in preventing virus transmission. Group A (masked) no mask 120 142 134 135 142 125 154 118 139 154 142 143 118 152 142 151 139 152 162 134 100 163 108 142 110 146 123 143 152 125 142 165 153 132 162 131 121 142 132 145. do not give steps . value for the statistic is either 5.23 , -1.49 , -0.64 or 14.52 show ur work